New Mexico State Police Capt. Rich Libicer said his agency initiated the closure of a section of U.S. 70 from about midnight to 1 a.m. because of snow and ice. That hour allowed Department of Transportation crews to improve the roadway, Libicer said.

"That's always the first roadway that goes downhill for us," he said.

As a result, Libicer noted, state police officers inspect it more often during cold and wet weather.

The Mesilla Valley Regional Dispatch Authority issued an advisory at about 7:30 a.m. reminding drivers to use caution on all roads, particularly at San Augustin Pass.

Lows are forecast to stay below freezing the rest of the week, but chances of rain or snow are low.